This particular example of B8.5 S4 has the S-Tronic Dual Clutch Transmission and the additional power from the Stage 2 upgrade requires the installation of a transmission tune along with the engine tune. The tune raises shift points to 7,200rpm, optimizes torque control, increases clutch pack clamping force, and raises the rpm limit for launch control to 4000rpm. The fully loaded G.I.AC. engine tune comes with a 91 octane file, 100 octane file, and valet file. This allows you to take advantage of race fuel typically found at the track. A large increase is seen when switching to the 100 octane file. To make switching files easier, included is a flashloader, which allows switching on the fly between different tunes.

The visual modifications pair well with the performance modifications and make this S4 stand out from the crowd. The RS Style Grill gives the front end an aggressive look while the ECS Flush Spacer Kit pushes the factory wheels out to give the B8.5 a sportier stance.